Cam selection help please

Yeah, I know. He doesnt have a 9:1 motor with flat top pistons .090 in the hole. He has "9:1 pistons" in a non-blueprinted 383 block, which means when you take into account the way tall deck height, plus the thick (replacement) head gasket, and assuing it has the closed chamber heads... It's less. If it's got open chamber heads it's MUCH less. Remember, if you run the domed pistons in a 383 that isn't decked a lot it still only gets up to about 9.5:1.